CN103933654B - A kind of self-inflated plastic stent and inserter - Google Patents
A kind of self-inflated plastic stent and inserter Download PDFInfo
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- CN103933654B CN103933654B CN201410153165.2A CN201410153165A CN103933654B CN 103933654 B CN103933654 B CN 103933654B CN 201410153165 A CN201410153165 A CN 201410153165A CN 103933654 B CN103933654 B CN 103933654B
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- drainage tube
- tube
- self
- developing ring
- plastic stent
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Abstract
The invention discloses a kind of self-inflated plastic stent, including drainage tube, drainage tube includes proximally and distally, drainage tube proximally and distally between to be provided with the more than one caged with telescopic resilience protruding, each caged projection is made up of the dowel with telescopic resilience of more than two, being space between dowel, drainage tube is inside and outside to be connected by space；The far-end of described drainage tube and first caged lobed interior position of close far-end are provided with drainage tube developing ring, and described drainage tube developing ring is fixed on drainage tube inwall.The present invention also discloses the inserter that a kind of a kind of support adaptive with self-inflated plastic stent is adaptive, in one, pipe one end is connected with boost tube, the other end sequentially passes through front hand grip, nut, outer tube, aligning pipe and self-inflated plastic stent, outer tube outer wall is provided with outer tube developing ring, outer wall of inner tube is provided with interior pipe developing ring, interior pipe developing ring abuts mutually with described drainage tube developing ring, the pipe propelling movement to self-inflated plastic stent in being formed.
Description
Technical field
The present invention relates to a kind of medical device implanted in human body, particularly a kind of self-inflated plastic stent and inserter.
Background technology
Plastic stent is that one is placed in human body gallbladder chamber, is used for guiding bile from gallbladder stream to ID medical apparatus and instruments, and existing conventional support is generally a catheter-like equipment, both ends open, conduit is typically provided with hole for drain, or is provided with agnail, for the internal fixing use of conduit.Due to conduit in human body would generally slip back and forth, have the risk come off, so plastic stent two ends also would generally be designed to the shapes such as curved greatly, pigtail type, be used for fixing the position of support.
But, only in opening small sircle hole on the two ends of support or support, after of long duration, aperture is easily blocked by the hamartoplasia in bile duct, causes again narrow, blocking, it is necessary to second operation.
Summary of the invention
Goal of the invention: the technical problem to be solved is for the deficiencies in the prior art, it is provided that a kind of self-inflated plastic stent and inserter.
In order to solve above-mentioned technical problem, the invention discloses a kind of self-inflated plastic stent, including drainage tube, drainage tube includes proximally and distally, drainage tube proximally and distally between to be provided with the more than one caged with telescopic resilience protruding, each caged projection is made up of the dowel with telescopic resilience of more than two, is space between dowel, and drainage tube is inside and outside to be connected by space；The far-end of described drainage tube and first caged lobed interior position of close far-end are provided with drainage tube developing ring, and described drainage tube developing ring is fixed on drainage tube inwall.
In the present invention, described dowel is linear type dowel or S type dowel.
In the present invention, support is made up of macromolecular materials such as PU, PE, PTFE.
The present invention also discloses the inserter that a kind of a kind of support adaptive with self-inflated plastic stent is adaptive, including the transparent knob being sequentially connected with, boosting pipe box, boost tube, front hand grip, nut, outer tube, aligning pipe and self-inflated plastic stent, in one, pipe one end is connected with boost tube, the other end sequentially passes through front hand grip, nut, outer tube, aligning pipe and self-inflated plastic stent, outer tube outer wall is provided with outer tube developing ring, outer wall of inner tube is provided with interior pipe developing ring, interior pipe developing ring abuts mutually with described drainage tube developing ring, the pipe propelling movement to self-inflated plastic stent in being formed, outer tube and self-inflated plastic stent are connected by outer tube developing ring.
Mutually abutted with described drainage tube developing ring by interior pipe developing ring, interior pipe developing ring promotes drainage tube to stretch, it is possible to self-inflated plastic stent caged projection is evened up and is directly arranged in infusion appliance, after self-inflated plastic stent discharges, owing to caged projection has telescopic resilience, it is possible to from swollen.
Beneficial effect: it is protruding that the present invention designs caged on drainage tube, plays the effect helping drain, can also increase the compliance of support simultaneously, helps support in intraluminal location, and is greatly reduced patient's foreign body sensation.By such design, traditional drainage tube just blocks after using 1～3 month, needs reappose or change, the present invention uses more than 6～8 months, just need to change, significantly alleviating sufferer burden, simultaneously because rely on caged protruding rather than overstriking drainage tube drain, the sense of discomfort of sufferer is also very slight.
Inserter of the present invention encases drainage tube without outer tube and discharges, and adopting new structure to ensure, drainage tube is outer so can reduce the external diameter of inserter without inserter outer tube, makes drainage tube and inserter can enter less endoscope and pass through less narrow.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments the present invention being done and further illustrate, the above-mentioned and/or otherwise advantage of the present invention will become apparent.
Fig. 1 is embodiment 1 supporting structure schematic diagram.
Fig. 2 is partial enlarged drawing in Fig. 1.
Fig. 3 is embodiment 1 population structure schematic diagram.
Fig. 4 is partial enlargement Fig. 1 in Fig. 3.
Fig. 5 is partial enlargement Fig. 2 in Fig. 3.
Fig. 6 is embodiment 2 supporting structure schematic diagram.
Detailed description of the invention
Embodiment 1
As shown in Fig. 1～Fig. 2, present embodiment discloses a kind of self-inflated plastic stent, including drainage tube 10, drainage tube includes far-end 10c and near-end 10d, drainage tube proximally and distally between be provided with three caged projection 10a with telescopic resilience, each caged projection is made up of the dowel 10b with telescopic resilience of four, is space between dowel, and drainage tube is inside and outside to be connected by space；The far-end 10c of described drainage tube and first caged projection 10a interior location of close far-end are provided with drainage tube developing ring 12, and as shown in Figure 4, described drainage tube developing ring is fixed on drainage tube inwall, and outer tube and self-inflated plastic stent are connected by outer tube developing ring.Described dowel is linear type dowel.
The shapes such as self-inflated plastic stent is made up of PU material, and overall one-tenth L is partially curved, tubing is provided with hole.
The manufacture method of the present embodiment self-inflated plastic stent is: uses cutting to be loaded on drainage tube 10 wall needing to make caged projection 10a impartial 4 the vertical grooves that cut out and forms dowels, carry out transconversion into heat, groove both sides are inwardly extruded, make dowel to outer projection, then cooling and shaping, final molding are carried out.
Such as Fig. 3, 4, shown in 5, the present embodiment also discloses the inserter that a kind of support is adaptive, including the transparent knob 1 being sequentially connected with, boosting pipe box 3, boost tube 2, front hand grip 5, nut 4, outer tube 6, aligning pipe 8 and self-inflated plastic stent 10, boost tube 2 is together injection molded with boosting pipe box 3, in one, pipe 7 one end is connected with glue with boost tube 2, the other end sequentially passes through front hand grip 5, nut 4, outer tube 6, aligning pipe 8 and self-inflated plastic stent 10, outer tube 6 outer wall is provided with outer tube developing ring 11, interior pipe 7 outer wall is provided with interior pipe developing ring 9, interior pipe developing ring 9 abuts mutually with described drainage tube developing ring 12, the pipe propelling movement to self-inflated plastic stent in being formed.Being straightened gradually from swollen joint on self-inflated drainage tube 10, external diameter diminishes, and locks front hand grip 5, and at this moment whole inserter pushes through biliary tract stenosis place, affected part.Taken pictures observation by X ray, when last on self-inflated drainage tube 10 from swollen joint by biliary tract stenosis place time, unclamp front hand grip 5, again promote forward transparent knob 1, when pushing strength more than resistance produced by drainage tube 10 near-end and outer tube developing ring 11 interference fit, interior pipe 7 disengages constraint and moves forward, and at this moment self-inflated drainage tube 10 is in the free state not stressed, and restores to the original state from swollen joint.Withdraw transparent knob 1, pipe 7 in regaining, self-inflated drainage tube 10 is stayed in biliary tract, plays drainage.
Embodiment 2
The present embodiment and embodiment 1 are distinctive in that, support is made up of PU material, and dowel is S type, the groove that corresponding cutting drainage tube is S-shaped.Caged projection is 1.Remainder is identical with embodiment 1.
The invention provides a kind of self-inflated plastic stent and inserter; the method and the approach that implement this technical scheme are a lot; the above is only the preferred embodiment of the present invention; should be understood that; for those skilled in the art; under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, these improvements and modifications also should be regarded as protection scope of the present invention.The all available prior art of each ingredient not clear and definite in the present embodiment is realized.
Claims (1)
1. support adaptation inserter one kind adaptive with self-inflated plastic stent, it is characterized in that, described self-inflated plastic stent includes drainage tube, drainage tube includes proximally and distally, drainage tube proximally and distally between to be provided with the more than one caged with telescopic resilience protruding, each caged projection is made up of the dowel with telescopic resilience of more than two, is space between dowel, and drainage tube is inside and outside to be connected by space；The far-end of described drainage tube and first caged lobed interior position of close far-end are provided with drainage tube developing ring, and described drainage tube developing ring is fixed on drainage tube inwall；It is characterized in that,
Including the transparent knob being sequentially connected with, boosting pipe box, boost tube, front hand grip, nut, outer tube, aligning pipe and self-inflated plastic stent, in one, one end of pipe is connected with boost tube, the other end sequentially passes through front hand grip, nut, outer tube, aligning pipe and self-inflated plastic stent, outer tube outer wall is provided with outer tube developing ring, outer wall of inner tube is provided with interior pipe developing ring, interior pipe developing ring abuts mutually with described drainage tube developing ring, the pipe propelling movement to self-inflated plastic stent in being formed, outer tube and self-inflated plastic stent are connected by outer tube developing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410153165.2A CN103933654B (en) | 2014-04-16 | 2014-04-16 | A kind of self-inflated plastic stent and inserter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410153165.2A CN103933654B (en) | 2014-04-16 | 2014-04-16 | A kind of self-inflated plastic stent and inserter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103933654A CN103933654A (en) | 2014-07-23 |
| CN103933654B true CN103933654B (en) | 2016-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410153165.2A Active CN103933654B (en) | 2014-04-16 | 2014-04-16 | A kind of self-inflated plastic stent and inserter |
Country Status (1)
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| CN (1) | CN103933654B (en) |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2621725Y (en) * | 2003-03-25 | 2004-06-30 | 中日友好医院 | Canal stand for human body |
| CN2707215Y (en) * | 2004-07-15 | 2005-07-06 | 王德盛 | Biliary tract stent for regional chemotherapy |
| CN2782099Y (en) * | 2005-04-11 | 2006-05-24 | 晁志涛 | Internal drainage tube for biliary tract support |
| US20080103584A1 (en) * | 2006-10-25 | 2008-05-01 | Biosensors International Group | Temporal Intraluminal Stent, Methods of Making and Using |
| CN201370875Y (en) * | 2008-12-30 | 2009-12-30 | 浙江华福医用器材有限公司 | Artificial lacrimonasal duct |
| CN201625313U (en) * | 2010-03-09 | 2010-11-10 | 刘勇峰 | Decompression drainage tube inside laparoscope common bile duct |
| CN102125717B (en) * | 2011-04-07 | 2013-07-24 | 大连大学 | Biliary tract internal drainage tube carrying radioactive particles |
| CN202409791U (en) * | 2012-02-08 | 2012-09-05 | 孙世杰 | Hepatobiliary drainage tube |
| CN203043283U (en) * | 2012-11-23 | 2013-07-10 | 郝君 | Biliary tract drainage device |
| CN203816039U (en) * | 2014-04-16 | 2014-09-10 | 南京微创医学科技有限公司 | Self-expanding plastic bracket and introducer |
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2014
- 2014-04-16 CN CN201410153165.2A patent/CN103933654B/en active Active
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| CN103933654A (en) | 2014-07-23 |
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Address after: 210061 hi tech Industrial Development Zone, Pukou District, Jiangsu, hi tech Road, No. three, No. 10, No. Applicant after: MICRO-TECH (NANJING) CO., LTD. Address before: 210061 hi tech Industrial Development Zone, Pukou District, Jiangsu, hi tech Road, No. three, No. 10, No. Applicant before: Nanjing Micro-Tech Co., Ltd. |
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Address after: 210061, No. 10, hi tech three road, Pukou hi tech Industrial Development Zone, Nanjing, Jiangsu Patentee after: Nanwei Medical Technology Co., Ltd Address before: 210061, No. 10, hi tech three road, Pukou hi tech Industrial Development Zone, Nanjing, Jiangsu Patentee before: Micro-Tech (Nanjing) Co., Ltd. |
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| CP01 | Change in the name or title of a patent holder |